is 2 347169749 - 1
has 104508509 decimal digits
takes 5,473.147 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2822,821.290764.6341 %1600000016000000365.74912.9436 %3,187.039765.6752 %
Target2811,410.645164.1975 %2000000400000000541.40324.0763 %1,952.048365.6569 %
Difference+1+1,410.6456+0.4366 %+14000000-384000000-175.6541-1.1327 %+1,234.9914+0.0182 %

Known prime factors (1 factor, 105.9 bits, 0.00003051% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3471697497752181456270574579143678859613732105.934111648285580760300908932
22 × 3 × 11 × 17 × 103 × 883 × 7333 × 50671 × 1472279
2020-07-23506711472279369,792,2772.92883.4247

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2020-07-23Roland ClarksonManual testing1600000016000000132105.934400.23.216%


Trial Factoring results:
5758596061626364656667686970717273747576777879808182
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2011-01-29Architects Cubedm1_172642650.011
2014-03-18monstolpc2652660.022
2016-03-09James Hintzlab13_122220152662670.043
2016-07-03Jacques MOLNEManual testing2672690.258
2016-09-16Jacques MOLNEManual testing2692700.344
2016-09-16Jacques MOLNEManual testing2702710.689
2016-09-16Jacques MOLNEManual testing2712721.378
2020-07-09Roland ClarksonManual testing2722732.755
2020-07-09Roland ClarksonManual testing2732745.510
2020-07-09Roland ClarksonManual testing27427511.02
2020-07-09Roland ClarksonManual testing27527622.04
2020-07-09Roland ClarksonManual testing27627744.08
2020-07-09Roland ClarksonManual testing27727888.17
2020-07-09Roland ClarksonManual testing278279176.3
2020-07-09Roland ClarksonManual testing279280352.7
2020-07-09Roland ClarksonManual testing280281705.3
2020-07-09Roland ClarksonManual testing2812821,411


ECM factoring results:
No ECM results for M347169749


Lucas-Lehmer results:
No L-L results for M347169749


PRP results:
No PRP results for M347169749


CERT results:
No CERT results for M347169749


P-1 factor-bounds graph:
B1 = 16000000 (P-1 stage 1)
103
104
105
106
107
108
103
104
105
106
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108
TF factor-bounds graph:
282
281
280
279
278
277
276
275
274
273
272
271
270
269
267
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265
this exponent TF target: 81
TF double-checked to: 67
250
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2110
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Last modified: 2024-03-13T02:15:48+00:00